OBJECT-ORIENTED PROGRAMMING.CS 102Wednesday, 6 October, 20211. Write a Java program that creates two variables of type integer, named as num 1and num 2. Get their values from user and then print the result of the followingarithmetic operations in separate lines:a. Additionb. Subtractionc. Multiplicationd. Divisione. Remainderf. AverageJava Code:

code : - //import Scanner class for input import java.util.Scanner; public class Main{ public…

Answered: OBJECT-ORIENTED PROGRAMMING. CS 102…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Java homework questions: Answer all exercises Not copied answer plzz Exercise 1 • Import and edit the Input04 project. • Run the code and examine the output. • Read through each next line until you find "BlueBumper". • The two numbers following "BlueBumper" are the object’s xPositon and yPosition. Store these coordinates as integers and print them. • Examine input04text.txt, if necessary. Input04.java package input04; import java.util.Scanner; public class Input04 { public static void main(String[] args){ Scanner sc = new Scanner(Input04.class.getResourceAsStream("input04text.txt")); //Edit these lines to advance the scanner sc.nextLine(); System.out.println(sc.nextLine()); //Does this line contain "BlueBumper"? System.out.println(sc.findInLine("BlueBumper")); //Store the next two numbers as xPosition and yPosition //Print these positions System.out.println("X: "…
Please help create a searching algorithm for this java program. When a user enters the ceo name it displays their info such as their full names. Their company, salary, and tax owed Program is below import java.io.File; import java.io.FileNotFoundException; import java.io.FileWriter; import java.io.IOException; import java.util.ArrayList; import java.util.Scanner; public class Main { static public double calcTax(double salary, double taxRate) { double taxOwed = 0; taxOwed = (salary * taxRate) / 100; return taxOwed; } public static void main(String[] args) throws IOException { ArrayList salary = new ArrayList(); ArrayList name = new ArrayList(); ArrayList company_name = new ArrayList(); // int lines = 1; try{ File myFile = new File("taxpayer.txt"); Scanner fileReader = new Scanner(myFile); while(fileReader.hasNextLine()){ String data =…
Java - How can I output the following statement as a single line with a newline? Program below. import java.util.Scanner; public class LabProgram { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); if(n>=11 && n<=100) { while(n>=11 && n<=100) { System.out.print(n+ " "); (the problem line. When I use System.out.println, it makes the line vertical when I want it horizontal.) if(n ==11||n==22||n==33||n==44||n==55||n==66||n==77||n==88||n==99) break; n--; } } else System.out.println("Input must be 11-100"); }}
4.34 LAB: Draw upside down triangle (JAVA) Write a program in java that outputs a right triangle of asterisks given the height as input. Each line ends with a blank space. Ex: If the input is: 3 the output is: * * * * * * Code starts here: import java.util.Scanner; public class LabProgram { public static void main(String[] args) { Scanner scnr = new Scanner(System.in); /* Type your code here. */ }}
Java Questions - Based on each code, which answer out of the choices "A, B, C, D, E" is correct. Each question has one correct answer. Thank you. Part 1 - 6. Given the following code, the output is __. class Apple { int x = 15; }class Banana extends Apple { int x = 25; }public class Sample {public static void main(String[] args) {Apple a1 = new Banana();System.out.println(a1.x);}} A. Compiler errorB. 25C. 15D. 0E. None of the options Part 2 - 7. Which is possibly a composite class? class Seed { ... }class Fruit { Seed s1 = new Seed(); }class Apple extends Fruits { ... }class Orange extends Apple { ... }class ApplePie { ApplePie a1 = new ApplePie(); } A. FruitB. AppleC. ApplePieD. OrangeE. Seed Part 3 - 10. Given the following code, which statement is true? class Water() { ... }class Juice() extends Water { ... }class Apple() { ... }class ApplePie() { Apple a1 = new Apple(); }class AppleJuice() { Apple a1 = new Apple(); Water w1 = newWater(); } A. Juice is a superclass and Water is a…
Preffered language is java. Will be compiled with intellij Problem 1 consists of multiple parts. You should finish one part and ensure that it works before moving to the next part. You will need to refactor (rewrite parts of) your code as you move between parts. Part 1 The use of computers in education is referred to as computer-assisted instruction (CAI). Write a program that will help an elementary school student learn multiplication. Use a SecureRandom object to produce two positive one-digit integers (you will need to look up how to do this). The program should then prompt the user with a question, such as How much is 6 times 7? The student then inputs the answer. Next, the program checks the student’s answer. If it’s correct, display the message "Very good!" and ask another multiplication question. If the answer is wrong, display the message "No. Please try again.>again." and let the student try the same question repeatedly until the student finally gets it right. A separate…
hi, why my code when i try to calculate BMI every time the answer equal 0.0 and can't get the right answer? package a;import java.util.*;public class a { public static void main(String []args){Scanner sc=new Scanner(System.in);label:System.out.println("Enter the number of cities");int noOfcities,nPerson;noOfcities=sc.nextInt();int under=0,obese=0,normal=0,over=0,c_under=0,c_obese=0,c_normal=0,c_over=0;double p_under,p_over,p_obese,p_normal;double max_normal=0.0,max_obese=0.0,min_under=100.0;String name,b_city="None",w_city="None",u_city="None",cat;int mass,height; while ( noOfcities<6){System.out.println("erro");System.out.println("Enter the number of cities"); noOfcities=sc.nextInt();}int i=0;while (i<noOfcities){i++;System.out.println("Enter the name of city");name=sc.next();System.out.println("Enter the number of persons");nPerson=sc.nextInt();while (nPerson<10){System.out.println("eror");System.out.println("Enter the number of…
JAVA - Please produce both a product.java file and a productprinter.java file (tester) Implement a class Product. A product has a name and a price, for example new Product("Toaster", 29.95). Supply methods getName, getPrice, and reducePrice. Supply a program ProductPrinter that makes two products, prints each name and price, reduces their prices by $5.00, and then prints the prices again.
java السؤال the following code has a syntax error Figure out the error and correct it ? class access { public int x; static int y; void cal(int a, int b) { x += a ; y += b; } } class B{ final int AGE = 32; AGE = 45; System.out.println ("Age: " + AGE); } }
Modify the command-line argument example Hello.java, to handle a few command-line arguments. Ask the user to enter a name followed by a number. The program should print out the name N times, while N is the input number. For example, if the command-line input is Java Hello Jim R. Joseph 5 Then the output should be: Jim R. Joseph Jim R. Joseph Jim R. Joseph Jim R. Joseph Jim R. Joseph Now what I got was this which is incorrect import java.util.Scanner;public class Main{ public static void main(String[] args) { Scanner input = new Scanner (System.in); System.out.print("Enter the name: "); String name = input.nextLine(); System.out.print("Enter the value of n: "); int num = input.nextInt(); int j = 0; while(j < num){ System.out.println(name); j++; } }} But the correct way to do it is to use the command-line arguments to send in the name and number, instead of the Scanner. So you can retrieve the name from args[0]…
Java - How do I output this statement as a horizontal statement with a newline? Everytime I use System.out.println, it makes the entire output vertical instead of horizontal. Program below. import java.util.Scanner; public class LabProgram { public static void main(String[] args) { int x; int y; Scanner scan = new Scanner(System.in); x = scan.nextInt(); y = scan.nextInt(); if(y >= x){ for(int i=x; i<=y; i = i + 5) { System.out.print(i+ " "); (The problem line) } } else{ System.out.print("Second integer can't be less than the first."); } }}
Need help with java problem. Start with the java file below and add the following methods:1. Add the methodpublic int getLastIndex(T item) which returns the index of the last entry which is equal to item. If item is not found, it returns -1. 2. Add the method public boolean equals(Object other) that returns true when the contents of 2 objects are the same. java file:

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